There are several reasons to wash your engine at least every year or two. A clean engine will run cooler than a dirty one. You’ll be more apt to tackle routine belt and hose checks and the like if you know you won’t get covered with grime every time you do so. A clean engine will also make it much easier to spot leaks and to service components. Remember to protect sensitive engine components—including the air intake, distributor, and electrical parts—with plastic bags before getting started. Use dishwashing liquid or other grease-cutting detergents and a bristle brush to scrub engine and components surfaces. Rinse thoroughly. Heavy-duty engine cleaning products are available at automotive parts stores. Follow the directions carefully. You may also have your engine professionally steam cleaned.
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